I will need to play with it in different scenarios to vet out what does doesn't work. It doesn't seem like "lose a reinforcement" it the expected behavior either? I thought it would be a great Gaea bouncer, but I can't trust it at the moment...
I've had both occur. It's worked as intended all but one time. The time that it failed, I was attempting to bounce a creature that had been reinforced once. It lost the reinforcement but remained in play.